WO1991010754A3 - Process for producing high-strength sintered parts from powdered steel - Google Patents
Process for producing high-strength sintered parts from powdered steel Download PDFInfo
- Publication number
- WO1991010754A3 WO1991010754A3 PCT/DE1991/000041 DE9100041W WO9110754A3 WO 1991010754 A3 WO1991010754 A3 WO 1991010754A3 DE 9100041 W DE9100041 W DE 9100041W WO 9110754 A3 WO9110754 A3 WO 9110754A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- producing high
- sintered parts
- powdered steel
- compacts
- strength sintered
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 239000010959 steel Substances 0.000 title abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000005245 sintering Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0264—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
In a process for producing high-strength sintered parts, a water-atomized and reduction-annealed powdered steel mixed with 0.3 to 0.7 wt.% of graphite powder is compressed in a mould to form compacts, which are then sintered at a temperature between 1120 and 1280 °C, cooled, hardened and annealed. In order to obtain a process for producing high-strength sintered parts which can nevertheless be hardened without being quenched in an oil bath, the powdered steel has the following composition: 0.02 % C, not more than 0.03 % Si, 0.05 - 0.25 % Mn, 2.5 - 5.0 % Ni, 0.2 - 1.5 % Mo, the remainder being iron and usual impurities; the compacts are compressed to at least 6.9 g/cm3; the compacts are cooled from the sintering temperature under a gas shower arranged in the cooling zone of the sintering furnace; and the final annealing is carried out at temperatures between 180 and 500 °C for 30 to 90 minutes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4001899.7 | 1990-01-19 | ||
| DE19904001899 DE4001899C1 (en) | 1990-01-19 | 1990-01-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1991010754A2 WO1991010754A2 (en) | 1991-07-25 |
| WO1991010754A3 true WO1991010754A3 (en) | 1991-09-05 |
Family
ID=6398605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1991/000041 WO1991010754A2 (en) | 1990-01-19 | 1991-01-17 | Process for producing high-strength sintered parts from powdered steel |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE4001899C1 (en) |
| WO (1) | WO1991010754A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19521941C1 (en) * | 1995-06-07 | 1996-10-02 | Mannesmann Ag | Mfg. sintered air-hardenable alloy steel component |
| DE19738919C1 (en) | 1997-09-05 | 1999-04-29 | Maxon Motor Gmbh | Process for manufacturing a plain bearing and plain bearing |
| TWI246947B (en) * | 2004-06-10 | 2006-01-11 | Taiwan Powder Technologies Co | Method for making sintered body of metal powder and sintered body prepared therefrom |
| DE102013001246A1 (en) * | 2013-01-25 | 2014-07-31 | Gkn Sinter Metals Holding Gmbh | Method for producing a wing for a vane pump, wings for a vane pump and vane pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1162702A (en) * | 1965-09-14 | 1969-08-27 | Hoganas Billesholms Ab | Low Alloy Iron Powder and process of preparing the same |
| JPS55128504A (en) * | 1979-03-28 | 1980-10-04 | Sumitomo Electric Ind Ltd | Manufacture of high strength sintered parts |
| JPS6184302A (en) * | 1984-09-28 | 1986-04-28 | Toyota Motor Corp | Manufacture of sintered forged parts |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6075501A (en) * | 1983-09-29 | 1985-04-27 | Kawasaki Steel Corp | Alloy steel powder for high strength sintered parts |
-
1990
- 1990-01-19 DE DE19904001899 patent/DE4001899C1/de not_active Expired - Lifetime
-
1991
- 1991-01-17 WO PCT/DE1991/000041 patent/WO1991010754A2/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1162702A (en) * | 1965-09-14 | 1969-08-27 | Hoganas Billesholms Ab | Low Alloy Iron Powder and process of preparing the same |
| JPS55128504A (en) * | 1979-03-28 | 1980-10-04 | Sumitomo Electric Ind Ltd | Manufacture of high strength sintered parts |
| JPS6184302A (en) * | 1984-09-28 | 1986-04-28 | Toyota Motor Corp | Manufacture of sintered forged parts |
Non-Patent Citations (4)
| Title |
|---|
| Chemical Abstracts, Band 98, Nr, 22, 30. Mai 1983, (Columbus, Ohio, US), J. Tengzelius et al.: "High-temperature sintering of powder metallurgy steels", siehe Zeile 232 * |
| Patent Abstracts of Japan, Band 86, Nr. 903, 3. September 1986; & JP-A-61084302 (TOYOTA), 28. April 1986 * |
| Powder Metallurgy, Band 18, Nr. 35, 1975, The Metals Society, (London, GB), G. Wastenson: "Methods of extending the applicability of sintered steels", Seiten 124-129 * |
| WPIL, File Supplier, AN nr. 81-62926D, Derwent Publications Ltd, (London, GB), & JP-A-55128504 (SUMITOMO), 5. Oktober 1980 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1991010754A2 (en) | 1991-07-25 |
| DE4001899C1 (en) | 1991-07-25 |
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